If the squat is the king of exercises, then the Advanced Fitness Manta Ray is how you get your crown. The ergonomic design helps distribute the load of the bar across your shoulders, giving you greater control, improving your posture, and reducing discomfort so you can focus on moving that weight. This accessory fits any bar and is also great for lunges and twists. Additional Information: Easy to install Improves posture while squatting. For both novices and experts. Rugged plastic construction. Fits any commercial or home gym bar. Reduces discomfort and increases control. Can also be used for lunges or twists. Encourages proper posture while squatting. Dimensions: 12L x 3W x 5H in..